عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLpq2299173107
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Infrared Transmission and Ozone Decomposition Characteristics of Selected North African Mineral Dusts
نام عام مواد
[Thesis]
نام نخستين پديدآور
Almedwah, Mariam M.
نام ساير پديدآوران
Vernon, Morris R.
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Howard University
تاریخ نشرو بخش و غیره
2019
مشخصات ظاهری
نام خاص و کميت اثر
92
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
M.S.
کسي که مدرک را اعطا کرده
Howard University
امتياز متن
2019
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
North Africa is one of the largest dust source regions in the world, emitting tons of dust particles that are annually transported to the atmosphere by strong winds. These dust particles may be strongly influencing the balance and the chemistry of the atmosphere and thereby has the potential to alter the regional climate system. The primary objectives of this study were to understand the infrared transmission and ozone decomposition characteristics of the selected North African mineral dust, as well as clarify the chemical composition of the regional dust samples. Dust samples were collected from different locations in North Africa: Sudan, Morocco, and Mali. Attenuated Total Reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy, was used to investigate the differences between the dust samples as a function of temperature and size distribution. Dust samples were exposed to different concentrations of ozone and then were examined for changes in the surface. Size distribution of dust particles had remarkable effects on the IR spectra recorded. Coarse dust may have different climate effect than fine dust because of the differences in their interaction with longwave radiation. Quartz, kaolinite, montmorillonite, illite, calcite, albite, and palygorskite were found in all dust samples. Vermiculite mineral was observed only in Mali dust. Mali mineral dust may have greater chemical effects due to absorbed frequency change. Sudan mineral dust may have greater climate effects due to enhanced interaction with long-wave radiation
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Aeronomy
موضوع مستند نشده
Atmospheric sciences
موضوع مستند نشده
Environmental science
موضوع مستند نشده
North African studies
موضوع مستند نشده
Public health
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Almedwah, Mariam M.
مستند نام اشخاص تاييد نشده
Vernon, Morris R.
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
